John barclay



(No Modem J. BARCLAY.

` MACHINE FOR DRYING` GRAIN. No, 254,903. Patented Ma;1-14,188z.

Unteren drames PATENT anice@ JOHN BARCLAY, OF TORONTO, ONTARIO, CANADA.

. MACHINE FOR DRYING GRAIN.

SPECIFICATION forming part of Letters Patent No. 254,903, dated March 14, 1882.

Application filed December 15, 1881. (No modeLl To all whom tt may concern Be it known that I, JOHN BARCLAY, a subject of thenQueen of Great Britain, residing at the city of Toronto, in the county of York, in the Province of Ontario, Canada, have invented'a certain new and useful Machine for Drying Oats and other Grain, of which the following is a specification.

The object of the invention is to provide an apparatus by which oats and other grain may be dried by the direct application of the heat from the lire without being injuriouslyatfected by the smoke ascending therefrom, and also in having the apparatus so arranged that the grain may be thoroughly dried while passing through it,without requiring any manual labor from the time it ent-ers the lmachine till itis discharged therefrom.

In the drawings, Figure l is a longitudinal section of my improved drying-1nachine. Fig. 2 is a cross-section thereof through 1, and Fig. 3 is a detail view of the sieve.

A is an outer casing, preferably made of brick, which may be constructed of iron or other suitable material.

B is a furnace built within the casing A.

C is an air-space formed on one end offthe casing A, behind the furnace, and extending upwardly to the top of the casing. i

D are pipes leading from the air-space C, through the furnace and into the air-space E, formed between the bottom F and sieve,` Gr.

In the drawings two\riddles constructed in this manner are shown in the machine; but it will of course be understood that more riddles may be supplied, if thought desirable.

B are openings provided with dampers and arranged to admit the smoke from the furnace into the space under, over, and between the sieves, as indicated by arrows, the smoke finallyrescapingthrough the chimney H.

I is a pressure-fan arranged to force airinto the airspace C, and thence through the airpipes D into the air-spaces E, where it escapes through the sieves Gr, and finally, mixing with the smoke, escapes through the chimney H.

J is a hopper-shaped spout through which the grain is introduced onto the top sieve, G. This sieve inclines slightly from the bottom of the spout J. Consequently' the grain admitted thereto spreads over it till it reaches its end, when it falls over onto the sieve below it,which is slanted in the reverse direction, the grain being thus spread over its surface till its other end is reached, when it falls through into the spout K, which carries it to the outside of the casing. As I have beforesaid, more sieves may be introduced, if desired. In order to assist the grain to travel along the face of the sieves, I provide means for agitating or shaking the said sieves. This may be effected in various ways. The plan I adopt is to place a vertical shaft, L, at one end of the casing A, and providel thc said shaft with wipers M, arranged to come in contact with brackets N xed to the end of the riddles, as shown. The vertical shaft L is caused to revolve by suitable means, imparting thereby the required agitation to the riddles through the wipers M coming in contact with the brackets N and forcing the riddles in one direction, the said riddles being carried back by the action of a spring, thereby causing a jerking movement to the riddles which produces the desired effect upon the grain.

Although the smoke, as before stated, is admitted into the space immediately over the grain, it cannot come in contact therewith, as the pressure of the heated air escaping through the perforations in the sieve Gr prevents so undesirable a result, while the heat from the smoke is fully utilizedV for the purpose of-assisting in drying the grain.

Dampers O are provided for the smoke-fines leading from the furnace. In this manner the fire is checked, and also the amount of smoke admitted into the casin g is regulated thereby.

Ido not in this application broadly claim the application of heated air and products of combustion, in themanner described, to grainreceptacles, as I have claimed such invention in a separate application of even date herewith.

What I claim as my invention isl. In a machine for drying oatsand other grain through the application ofartificial heat, one or more sieves arranged to carrythe grain, and contained within a chamber through which the smoke and heated gases from a furnace are conducted, au air-space below cach sieve and supplied with heated air under pressure,

so thatin passing through the sieves lthe force of its escape prevents the smoke mixing with the grain carried on the sieves.

2. The sieves G, provided with air-chambers E, in combination with the furnace B, the pipes D, passing through the furnace and into the air-chambers E, and suitable means for forcing a current of air through said pipes D, substantial] y as described.

3. The combination, with the sliding,` sieves G, of springs at one end of saidsieves, andthe vertical shaft L, provided with wipers M, to operate against the opposite ends of said sieves, and the pipes D, serving as inlets to the sieves andas supports for the said springs, 15 substantially as described.

JOHN BARGLAY. Witnesses:

C. W. BALDWIN, H. H.`WARREN. 

